Guru
Joined: 16/02/2019
Location: United StatesPosts: 960
| Posted: 04:04am 06 Jun 2021 |
There is a wiggle at top and bottom as seen seen in pics
It kinda seems like it is pulsing by the very low hum and how it looks live on scope
Kind of a little rev up and down but it could be in my head lol
I took three pics the wiggles almost not there in one pic another just had wiggle on top
I uploaded the third pic
The back ground of inverter pic also happens to have wiggle top and bottom
There is a filter cap on the inverter board by the little step down voltage feedback transformer
There is two two pin plugs side by side that seems to be for voltage feedback
They have continuity in between them with the beep test
Farthest right pin of first plug and farthest left pin of second plug beep then the two inside pins one from each plug beep
Even though they shere continuity could only one plug go through the on board filter cap?
The small red board close to tranny that has two filter caps on it and a three way screw down connector
The three terminal screw down connector
Joins the tranny two the outlets
Each of the two filter caps on this small board have a leg going to the center tap zero volts of tranny
the other leg of each going to opposite 120 volt legs of tranny output
The voltage feed back is not hooked to the center tap it is 240 volts back to the board
Out put voltage dose move around a little
but not even a volt
maybe my volt meter is not fast enough to catch it if it is fluctuating more than 1/2 volt
I am trying to figure out why any ideas?
I have used this inverter for a long time
It was 120 volt only the last year or two
I rewired it for 240 volts and added some big dc input caps
The idle is not to bad
But the wiggles bother me
I also put two outlets in it one off each leg of 120 volts and each have resetable fuses
The bus plugs into the big 240 plug
Edited 2021-06-06 15:06 by BenandAmber